TY - RPRT TI - Transient decrease of secretory IgA in tears during rigid gas permeable contact lens wear. AU - A Kijlstra AU - B C Polak AU - L Luyendijk PY - 1992 DO - 10.3109/02713689209000062 UR - https://pubmed.ncbi.nlm.nih.gov/1572203/ ID - 1572203 ER -